C111123313121111121111331333133313331323232133313331333133313311211111231231211   >>    C11112331312111112111133133313331333132323213331333133313331331121111123123121   <<    C111123313121111121111331333133313331323232133313331333133313311211111231231213   >>      C111123313121111121111331333133313331323232133313331333133313311211111231231212   >>